Câu hỏi:

Circle the correct answer A, B, C or D.

The public suggested that the factories ………. with waste treatment system.

Circle the correct answer A, B, C or D.

It ………that China dug up the ocean floor to build artificial islands.

Circle the correct answer A, B, C or D.

It ……….. that China dug up the ocean floor to build artificial islands.

Circle the correct answer A, B, C or D.

The Thang Long Imperial Citadel was the ………. of political power for nearly seven centuries without interruption.

Circle the correct answer A, B, C or D.

They failed to gain international ............... as an independent country.

Circle the correct answer A, B, C or D.

It …………that some foreigners had collected rubbish on Cat Ba Beach.

Circle the correct answer A, B, C or D.

The towers of the My Son sanctuary are the most significant ……. of the My Son civilization.